Overhead‑line 3‑section current‑protection calculator, 10‑34.5 kV, short‑circuit‑capacity input, LGJ/JKLYJ/ACSR conductor library, inverse‑time curve & auto‑sensitivity check, with engineering recommendations.
This engineering calculation workbook follows prevailing IEC 60255‑151 and IEEE C37.112 standards. It is designed for overhead distribution‑line protection design, relay‑setting review and feeder‑automation scheme development.
It includes structured input modules, auto‑computation sheets, protection‑setting output tables, sensitivity‑verification forms and a complete conductor‑impedance database, together with detailed user instructions covering setting principles and international‑project adaptation notes.
It simplifies engineering workflows and lowers protection‑coordination risks. Contact us for the original workbook and customization services.
RWK-35: Advanced 200mA SEF Recloser Controller compliant with ANSI C37.60. Smart brain for 12kV-38kV grid automation with DNP3.0/IEC104 multi-protocol support.
The Automatic Recloser Controller (with FA) is a crucial device in electrical systems. It ensures rapid re - closing of circuits after faults, enhancing power supply reliability.
The Line Sectionalizing Load Break Switch Controller is a key device. It manages the sectionalizing of power lines, ensures reliable power distribution, enhancing grid stability and operational safety
Calculation outputs serve as preliminary engineering reference. Please verify all results combined with actual site conditions before applying them in formal project documents.
Three‑section current protection has limitations on detecting single‑phase high‑impedance faults. Additional zero‑sequence directional or sensitive earth‑fault protection functions are generally required.
Customization is supported. We can adjust input items, conductor library contents, curve types and output formats according to internal‑project requirements. Please send over your specific requirements.
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